Gupta, B.J. (1989) The relationship of mucoid substances and ion and water transport, with new data on intestinal goblet cells and a model for gastric secretion. Symp. Soc. exp. Biol.43, 81–110.Google Scholar

Mattheij, J.A.M. and Stroband, H.W.J. (1971) The effects of osmotic experiments and prolactin on the mucous cells in the skin and the ionocytes in the gills of the teleost Chichlasoma biocellatum. Z. Zellforsch.121, 93–101.Google Scholar

Nicholl, C.S. and Bern, H.A. (1971) On the actions of prolactin among the vertebrates: is there a common denominator? In Wolstenholme, G.E.W. and Knight, J., eds. Ciba Foundation Symposium on Lactogenic Hormones. London: Churchill-Livingstone, pp. 299–324.Google Scholar

Pickering, A.D. and Macey, D.J. (1977) Structure histochemistry and the effect of handling on the mucous cells of the epidermis of the char Salvelinus alpinus (L.). J. Fish Biol.10, 505–12.Google Scholar